feat: allow repeated bill generation and editable deposit deductions

apps/admin/src/pages/Bills/index.tsx

@@ -356,14 +356,13 @@ const BillsPage: React.FC = () => {
             name="billingMonth"
             label="账单月份"
             rules={[{ required: true, message: '请选择账单月份' }]}
-            extra="只能选择已结束月份，每个月只能生成一次账单"
+            extra="选择任意账单月份；重复生成时无变化不生成，有变化则生成差额账单"
           >
             <DatePicker
               style={{ width: '100%' }}
               picker="month"
               placeholder="选择月份"
               format="YYYY-MM"
-              disabledDate={(current) => !!current && !current.endOf('month').isBefore(dayjs(), 'day')}
             />
           </Form.Item>
         </Form>

apps/admin/src/pages/Deposits/index.tsx

@@ -120,6 +120,7 @@ const DepositsPage: React.FC = () => {
       const values = await refundForm.validateFields();
       await api.put(`/deposits/${refundModal.id}/refund`, {
         refundDate: values.refundDate.format('YYYY-MM-DD'),
+        deductionAmount: values.deductionAmount || 0,
         notes: values.notes,
       });
       message.success('退还操作完成');
@@ -210,7 +211,13 @@ const DepositsPage: React.FC = () => {
                 type="primary"
                 onClick={() => {
                   setRefundModal(record);
-                  refundForm.setFieldsValue({ refundDate: dayjs() });
+                  refundForm.setFieldsValue({
+                    refundDate: dayjs(),
+                    deductionAmount: Math.min(
+                      moneyNumber(record.amount),
+                      moneyNumber(record.personalExpenseAmount),
+                    ),
+                  });
                 }}
               >
                 退还
@@ -361,33 +368,24 @@ const DepositsPage: React.FC = () => {
               <strong>¥{moneyNumber(refundModal?.personalExpenseAmount).toFixed(2)}</strong>
             </div>
             <div style={{ marginTop: 4 }}>
-              自动扣除:{' '}
-              <strong style={{ color: '#fa8c16' }}>
-                ¥
-                {Math.min(
-                  moneyNumber(refundModal?.amount),
-                  moneyNumber(refundModal?.personalExpenseAmount),
-                ).toFixed(2)}
-              </strong>
-            </div>
-            <div style={{ marginTop: 4 }}>
-              实际退还:{' '}
-              <strong style={{ color: '#52c41a' }}>
-                ¥
-                {Math.max(
-                  0,
-                  moneyNumber(refundModal?.amount) -
-                    Math.min(
-                      moneyNumber(refundModal?.amount),
-                      moneyNumber(refundModal?.personalExpenseAmount),
-                    ),
-                ).toFixed(2)}
-              </strong>
+              下方扣除金额会自动填入个人附加费，可手动调整
             </div>
           </div>
           <Form.Item name="refundDate" label="退还日期" rules={[{ required: true }]}>
             <DatePicker style={{ width: '100%' }} placeholder="选择退还日期" format="YYYY-MM-DD" />
           </Form.Item>
+          <Form.Item
+            name="deductionAmount"
+            label="扣除金额（元）"
+            extra="默认填入未出账个人附加费，不能超过当前可用押金"
+          >
+            <InputNumber
+              min={0}
+              max={moneyNumber(refundModal?.amount)}
+              precision={2}
+              style={{ width: '100%' }}
+            />
+          </Form.Item>
           <Form.Item name="notes" label="备注">
             <Input.TextArea rows={2} />
           </Form.Item>